Finishing-nail.



J. J. SIMON.

FINISHING NAIL. I urmonron rum: AUG.28, 1908 927,291. Patented July 6, 1909.

\ //4 V/AY/ W// F Willa/1011i"?! 4 4 I 6 4 WlTNESSES 5 ATTORNEY UNITED STATES JACOB J. SIMON, OF MCDONALDSVILLE, OI-IIO.

FINI SHIN G-N AIL.

To all whom it may concern:

Be it known that I, JACOB J. SIMON, a citizen of the United States, residing at McDonaldsville, in the county of Stark and State of Ohio, have invented a new and useful Finishing-N ail, of which the following is a specification. The invention relates to a nail for finishmg work in wood, leather or other tough and elastic materials; and the object of the improvement is to shape the shank and the head of the nail so that the material into which it is driven will close in around the head of the nail and substantially secrete the same, without any preliminary coutersink or groove being provided in the material.

The object of the invention is attained by shaping the nail with a point on its inner end from which its shank is divergingly tapered gradually without any abruptness or angles, to the widest diameter of the head adjacent to the outer end, whence the head is conically converged to an outer end point; whereby the nail is ada ted to be driven into a tough elastic materi l by slightly puncturing the same with the inner end point of the shank, then spreading without cutting the material in all directions by the wedge action of the tapered shank, until the largest diameter of the head has been driven into the body of the material, after which the elastic quality of the material will cause it to close in over and around the cone-shaped head of the nail and cover the same.

The invention, thus set forth in general terms, is illustrated in the accompanying drawings, forming part hereof, in which drawings- Figure 1 is a side elevation of the improved nail; Fig. 2, a fragmentary sectional perspective view showing the use of the nail in finishing woodwork; Fig. 3, a longitudinal section of the sole and heel of a shoe showing the improved nails therein; Fig. 4, an under side perspective View of a shoe showing the sole and heel finished with the improved nails and Fig. 5, a longitudinal sectional view of a heel slightly worn and showing a slightly modified form of the shank.

Specification of Letters Patent.

Application filed August 28, 1908.

Patented July 6, 1909.

Serial N0. 450,627.

Similar numerals refer to similar parts throughout the drawings.

The nail is preferably made substantially round in cross section and the shank 1 is tapered. from the widest diameter 2 of the head to the inner end 3 which is preferably somewhat pointed. The shank is tapered without any abruptness or angles so that when driven into a tough elastic material, it will spread the same by a wedge-action without cutting or severing the body thereof, excepting merely the puncture which is made by the pointed end.

The head 4 of the nail is tapered, preferably in the form of a cone, from its widest diameter to the point 5 at its outer end, which point is adapted to be impinged b the hammer. When the shank and hem are driven into the body of the leather 6 or wood 7, or other tough and elastic material, the same will close in over and around the conical head of the nail and completely cover the same for all ractical urposes, so that only the outer end point, i any portion, remains visible.

The shank of the nail is preferably slightly concaved in its length, as shown in Figs. 1, 2 and 8, or the shank may be made substantially straight from its point to the head, as shown in Fig. 5, the particular shape of the shank in this respect being determined by the character of the material in which the nail is to be used.

It is evident that when a nail of this character is employed in the heel of a shoe, the abrasion of the same by the wear of the heel will generally form a plane at an obtuse angle with the sides of the head, and the edges formed by such a plane will not be so readily battered to form sharp projections on the sides, as when the worn plane forms a very acute angle with the sides of the nail. This special benefit, of course, only pertains to the head portion of the nail, and for thls reason it is preferable to make the tapered head long enough to include such portion of the heel which, when worn 0H, requires the heel to be rebuilt. It is furthermore evident that the round form of the nail is not essential for obtaining the benefits of the tapered form of the shank and head, and that if desired for convenience in manufacture or for particular uses, the nail can be formed square in cross section, as illustrated in the modified form shown in Fight in which event the head and the shank take theiorrn of elongated pyramids.

That I claim as my invention, and desire to secure by Letters Patent, is-

1. A secret nail substantially round in cross section and having its shank and head tapered unahruptly from the Widest diameter of the head adjacent to one end to points at the respective ends of the nail.

2. Asecret nail having its shank and head 15 tapered unaoruptly from the Widest portion of the head adjacent to one end to points at the respective ends of the nail.

JACOB J. SIMON.

i Vitnesses HARRY FREASE, JOSEPH FREASE. 

